Abstract Condensation of 4-methylsulfonylaniline with aryl aldehyde in ethanol- tetrahydrofuran afforded the imino compound 3. 1, 3-Cycloaddtion of diazomethane with compound 3 followed by oxidazation of the triazoline 4 with potassium permanganate gave 1-(4-methylsulfonylphenyl)-5-aryl-1, 2, 3-triazoles 5. Similarly, condensation of 4-(N, N- dibenzylaminosulfonyl) aniline with aryl aldehyde followed by 1, 3-cycloaddition of ...